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Retrofitting LED Cluster in a HH Karizma/R Taillight Retrofitting LED Cluster in a HH Karizma/R Taillight
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Old 06-22-2011, 12:08 PM   #11 (permalink)
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Quote:
Originally Posted by rajr View Post
Nice work.

Are the resistors not getting heated up.
The resistor do get heated when installed in series. Use higher watt capacity resistors either 1watt or 2 watt will be safe.
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Old 08-21-2011, 12:22 AM   #12 (permalink)
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Originally Posted by Janesh.J View Post
The resistor do get heated when installed in series. Use higher watt capacity resistors either 1watt or 2 watt will be safe.
Me think why the resistors ...If you link 4 or 5 LEDs in series can we do away with resistors altogether ? Also since power consumption is being drastically reduced , we could plonk in much more numbers of LEDs .
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Old 08-22-2011, 03:06 AM   #13 (permalink)
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Originally Posted by acs1207 View Post
Me think why the resistors ...If you link 4 or 5 LEDs in series can we do away with resistors altogether ? Also since power consumption is being drastically reduced , we could plonk in much more numbers of LEDs .
The thing about bike electrical is that, the voltage does not remain constant, which is the basic reason why the resistors are needed, moreover, there wont be any space for more number of LED's
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Old 10-06-2011, 12:11 PM   #14 (permalink)
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Default Combination LED tail+brake lamp circuit for better efficiency & space management
here's link to my circuit for a combined LED brake+tail light, its more efficient than separate LED cluster for braking & tail lamp... the LED's brightness increases while braking...
https://www.facebook.com/photo.php?f...type=3&theater

link to images of circuit being tested...
https://www.facebook.com/photo.php?f...type=1&theater
https://www.facebook.com/photo.php?f...type=1&theater

link to images after installation...
https://www.facebook.com/photo.php?f...type=1&theater
https://www.facebook.com/photo.php?f...type=1&theater
Last edited by Abhijeet Bhattacharjee; 10-07-2011 at 12:25 PM. Reason: Broken link to image
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Old 10-06-2011, 05:20 PM   #15 (permalink)
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Default My setup
i have done a similar mod on mY HH Splendor
I thought some one can benefit or take ideas from my setup.

A good website for calculating Resistor values is LED series parallel array wizard

Cost
perf board 25
leds 2*10=20(5mm led red)
2*6=12 ultrabright white
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retrofitting-led-cluster-hh-karizma-r-taillight-img_0431.jpg   retrofitting-led-cluster-hh-karizma-r-taillight-img_0430.jpg   retrofitting-led-cluster-hh-karizma-r-taillight-img_0434.jpg  
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Old 03-27-2012, 05:34 PM   #16 (permalink)
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Nice work.

This is kind of work i do in my company during optics experiments.

u can get all the parts from

element14.com
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